Jump to content

sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

Imaging rig idea


martin_h
 Share

Recommended Posts

Been having a think - like you do!

Given that the weather is not been good for the past few months, I had an idea to cut down on imaging time. 2 ED80's on a HEQ6 with a guide scope between them and 2 CCD's. I have the QHY9 mono and they do a OSC version as well, so 1 scope for lum and the other for RGB at the same time......workable idea? or not?

Ant thoughts?

Link to comment
Share on other sites

Yep should work......

If you use guide rings to mount the scope you can co-align them ...

Balance shouldnt be an issue as you would essentialy have the same kit on both ends...

I Use DSLR's on B&S heads to take iamges of two different targets at the same time in an attempt to make the best use of limited imaging opportunities...

Auriga Imagings Registar would be my software of choice for combining the data...

Billy...

Link to comment
Share on other sites

Thats the exact same setup that I'd like to be working towards, except with a 2nd hand 285 based OSC cam. It would also eliminate the problem of differing seeing conditions since the luminence and colour frames are being taken at the same time.

Link to comment
Share on other sites

Sounds ideal - everything you need in one go.

I also saw an adapter on telescope service that let you put your DSLR on the counterweight bar too - x3 cams at once!

Now if only we could get it to make a brew too......

Link to comment
Share on other sites

Just a thought - but looking at your sig, Im sure you could go faster with the stuff you already have.

Dont know if it would work, but you could put your 8" SCT on the HEQ5 and hyperstar it for f2. The only downside I can think of is changing filters, but its a lot cheaper than a new mount, camera and scope.

Link to comment
Share on other sites

Billy is right on Registar, you would need that. I suspect you are making a big assumption in thinking that mono RGB and OSC are equivalent in a given exposure time. I don't think they are. I think that 3 hours OSC and 3 hours Lum added would be inefficient because you would wash out the colour data. I have OSC and mono versions of the same camera and have combined data, but never just L and OSC. Now I might be wrong on this but that's my gut feeling from working with OSC and mono data.

However, the idea remains good. I would do something like this; shoot non stop OSC on one side. On the other shoot a good dose of lum and then some RGB, maybe binned, for colour saturation. Or, and I do this a lot on emission nebulae, OSC on one side and Ha on the other. That really does make it sing.

Here are a couple done that way:

http://ollypenrice.smugmug.com/Photography/Widefield-images-including/NAN-FINISHED/1140503434_oQfB2-X3.jpg

http://ollypenrice.smugmug.com/Other/Nebulae-and-clusters/ROSETTEPSEPT10/1013289628_hS3L7-X3.jpg

Yet another speed option; you have mono and OSC and this is what I use in my Canon EF200L lens. I use the OSC for colour and get Ha in the mono. You can certainly run this at f3.2 which is around four times as fast as an ED80, not twice as fast as with the double barreled system. You need something like the Geoptik adapter to fit lens to camera. Example of this system;

http://ollypenrice.smugmug.com/Photography/Widefield-images-including/SIMEIS-147-HArgb/1182345194_8j8Pv-X2.jpg

Olly

Edited by ollypenrice
Link to comment
Share on other sites

True, f6.3 is reasonable. I think the 2-shooter is a great idea. You can adjust the blends in the light of experience. In my own case, buying a second FSQ85 has certain disadvantages...

Olly

Edited by ollypenrice
Link to comment
Share on other sites

  • 2 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.